Eremogone macradenia var. macradenia

Endemic
Synonyms: Arenaria congesta var. parishiorum B. L. Robinson Arenaria macradenia var. parishiorum Eremogone parishiorum (B. L. Robinson) Ikonnikov
Treatment appears in FNA Volume 5. Treatment on page 68. Mentioned on page 69.

Cauline leaves mostly in 5–8 pairs, blade ± ascending throughout, 0.8–1.2 mm wide. Inflorescences: branches erect to ascending. Flowers: sepals 4.5–7.2 mm, to 8 mm in fruit, ± glabrous; nectaries thickened, molarlike, apically 2-lobed, 1–1.5 mm.


Phenology: Flowering spring–summer.
Habitat: Open woodlands, sagebrush flats, dry, rocky slopes, alluvial deposits, often on carbonates
Elevation: 600-2200 m

Distribution

V5 145-distribution-map.gif

Ariz., Calif., Nev., Utah.

Discussion

Plants with petals equaling or barely exceeding the sepals and with cauline leaves fewer than five pairs have been recognized as Arenaria macradenia var. parishiorum; those features intergrade completely with var. macradenia. See M. F. Baad (1969) for his reasons for accepting var. parishiorum as a species.

B. Maguire (1947) included “Lower California” in his distribution statement for var. macradenia, implying Baja California; we have not seen any collections from that area.

Selected References

None.

Lower Taxa

None.
Ronald L. Hartman +, Richard K. Rabeler +  and Frederick H. Utech +
(S. Watson) Ikonnikov +
Arenaria macradenia +
Ariz. +, Calif. +, Nev. +  and Utah. +
600-2200 m +
Open woodlands, sagebrush flats, dry, rocky slopes, alluvial deposits, often on carbonates +
Flowering spring–summer. +
Novosti Syst. Vyssh. Rast. +
Arenaria congesta var. parishiorum +, Arenaria macradenia var. parishiorum +  and Eremogone parishiorum +
Eremogone macradenia var. macradenia +
Eremogone macradenia +
variety +